Future Directions for Atom Transfer Radical Polymerizations

Matyjaszewski, Krzysztof

doi:10.1021/acs.chemmater.3c03213

Chem. Mater.

2024

DOI: 10.1021/acs.chemmater.3c03213

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Future Directions for Atom Transfer Radical Polymerizations

Krzysztof Matyjaszewski

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Cited by 7 publications

References 37 publications

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Advances in the textile industry through surface-initiated reversible deactivation radical polymerization: Exploring the latest advances, opportunities, and future directions in precise tailoring textile properties by well-defined polymers

Kisiel,

Zaborniak,

Chmielarz

2024

Polymer

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Advances in the textile industry through surface-initiated reversible deactivation radical polymerization: Exploring the latest advances, opportunities, and future directions in precise tailoring textile properties by well-defined polymers

Kisiel,

Zaborniak,

Chmielarz

2024

Polymer

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The Future of Free Radical Polymerizations

Liu

2024

Chem. Mater.

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N-Carbazolyl π-Radical and Its Antiaromatic Nitrenium Ion: A Threshold Photoelectron Spectroscopic Study

Saraswat,

Portela-Gonzalez,

Mendez-Vega

et al. 2024

J. Phys. Chem. A

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Understanding the structure and properties of heterocyclic radicals and their cations is crucial for elucidating reaction mechanisms as they serve as versatile synthetic intermediates. In this work, the N-carbazolyl radical 1 was generated via pyrolysis and characterized using photoion mass-selected threshold photoelectron spectroscopy coupled with tunable vacuum-ultraviolet synchrotron radiation. The N-centered radical 1 is classified as a π-radical ( 2 B 1 ), with the unpaired electron found to be delocalized over the central five-membered ring of the carbazole. Adiabatic ionization energies corresponding to the transition from radical 1 to its singlet 1 + ( 1 A 1 ) and triplet 1 + ( 3 B 2 ) cations were determined to be 7.70 ± 0.03 and 8.14 ± 0.03 eV, respectively. The antiaromatic nitrenium ion 1 + exhibits a singlet ground state with an experimental singlet−triplet energy gap (ΔE S−T ) of −0.44 eV (10.1 kcal/mol), in very good agreement with theory. Ncentered radicals are found to have a higher ionization energy than their C-centered analogues due to stabilization of the singly occupied molecular orbital.

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Future Directions for Atom Transfer Radical Polymerizations

Cited by 7 publications

References 37 publications

Advances in the textile industry through surface-initiated reversible deactivation radical polymerization: Exploring the latest advances, opportunities, and future directions in precise tailoring textile properties by well-defined polymers

Advances in the textile industry through surface-initiated reversible deactivation radical polymerization: Exploring the latest advances, opportunities, and future directions in precise tailoring textile properties by well-defined polymers

The Future of Free Radical Polymerizations

N-Carbazolyl π-Radical and Its Antiaromatic Nitrenium Ion: A Threshold Photoelectron Spectroscopic Study

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